3 documents found, page 1 of 1
Surface functionalization of ureteral stents-based polyurethane: engineering an...
Ecevit, Kardelen; Silva, Eduardo Alexandre Pereira; Rodrigues, Luísa Cidália Guimarães; Aroso, Ivo; Barros, Alexandre A.; Silva, Joana M.; Reis, R. L.Bacterial colonization of polyurethane (PU) ureteral stents usually leads to severe and challenging clinical complications. As such, there is an increasing demand for an effective response to this unmet medical challenge. In this study, we offer a strategy based on the functionalization of PU stents with chitosan-fatty acid (CS-FA) derivatives to prevent bacterial colonization. Three different fatty acids (FAs)...
Remoção de microcistina-LR com granulado de cortiça
Menezes, Carina; Pires, Ricardo; Aroso, Ivo; Fernandes, Emanuel; Reis, Rui; Silva, Susana P.; Carvalho, Ana P.; Mestre, Ana S.; Pereira, PauloActualmente, os métodos mais eficazes de remoção de cianotoxinas envolvem o uso de tecnologias dispendiosas. Os carvões activados são ainda de elevado custo pelo que a procura de adsorventes alternativos é o foco de estudos de tratamento de águas destinadas ao consumo humano. O presente trabalho tem como objectivo a avaliação do potencial de utilização de granulados de cortiça para a remoção de MCLR. Para isso,...
Activated carbons prepared from industrial pre-treated cork: Sustainable adsorb...
Mestre, Ana S.; Pires, Ricardo A.; Aroso, Ivo; Fernandes, Emanuel M.; Pinto, Moises L.; Reis, Rui L.; Andrade, Marta A.; Pires, Joao; Silva, Susana P.Industrial pre-treated cork - granules of expanded corkboard, prepared from renewable biomass - was used for the first time as precursor for the preparation of eco-friendly activated carbons by chemical (K2CO3 and KOH) and physical (steam) activation. Samples with different textural (microporosity/micro + mesoporosity) and surface chemistry (acidic/basic) were obtained. In the best compromise between porosity d...